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ProfileTravis
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Message 49498 - Posted: 23 Jun 2011, 16:52:55 UTC

I should have the problem with a few of the nbody workunits awarding 0 credit fixed today. Are there any other significant problems in credit or with the applications?

If not, I think we'll have the double credit days next monday and tuesday, as things have finally been running smoothly. Or would it be better to have them on a weekend?
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Message 49500 - Posted: 23 Jun 2011, 17:04:01 UTC
Last modified: 23 Jun 2011, 17:04:52 UTC

Dont have any problems but ok i use GPU Apps only ;) (ok on this days i will use some CPU cores too *GGGG*)

The double credit days can be whenever you want, the computer can crunch alone :)
I think monday/thuesday would be little better for me personal cos perhaps i can break Daily BOINC Overall 100k on monday with my oldie hardware ^^
DSKAG Austria Research Team: http://www.research.dskag.at



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Message 49508 - Posted: 23 Jun 2011, 18:08:39 UTC - in response to Message 49498.  

Or would it be better to have them on a weekend?

No.
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Message 49511 - Posted: 23 Jun 2011, 20:36:57 UTC

Weekend would be better!
My Boinc Blog
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Message 49514 - Posted: 23 Jun 2011, 21:11:44 UTC - in response to Message 49511.  

Weekend would be better!

+1
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VictordeHollander

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Message 49515 - Posted: 23 Jun 2011, 21:45:44 UTC

Maybe a silly question, but is the double credit days for CPU only or also GPU?
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ProfileTravis
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Message 49516 - Posted: 23 Jun 2011, 21:49:41 UTC - in response to Message 49515.  

Maybe a silly question, but is the double credit days for CPU only or also GPU?


Both.
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Message 49517 - Posted: 23 Jun 2011, 22:17:32 UTC - in response to Message 49516.  

Maybe a silly question, but is the double credit days for CPU only or also GPU?


Both.

Nice!

Only 'issue' is that one CPU core needs to be at idle to let MW@home use 99% of my GPU (6950). See also the tread in number-crunching:
http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2461
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TJ

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Message 49523 - Posted: 24 Jun 2011, 5:47:48 UTC

Hi Travis,

What I see is that WU's with a longer runtime, but a shorter CPU time get less credit. I have made a post of it mounths ago, but none of the admins reacted.

So it seems to me that credit is granted for the CPU time and not the run time. Is this correct or am I missing something important. In that case I apologize.
Greetings from,
TJ
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VictordeHollander

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Message 49526 - Posted: 24 Jun 2011, 7:04:02 UTC - in response to Message 49523.  

Hi Travis,

What I see is that WU's with a longer runtime, but a shorter CPU time get less credit. I have made a post of it mounths ago, but none of the admins reacted.

So it seems to me that credit is granted for the CPU time and not the run time. Is this correct or am I missing something important. In that case I apologize.

Maybe I can clear this up a bit for you.
For example, a MW@home workunit that runs for 60 min (3600 sec) on a CPU and using 90% of that CPU. The actual amount of time the CPU spent on calculating that workunit is in that case : 3600x0.9=3240 sec.
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Nigel Garvey

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Message 49528 - Posted: 24 Jun 2011, 10:43:04 UTC - in response to Message 49498.  

Are there any other significant problems in credit or with the applications?

If not, I think we'll have the double credit days next monday and tuesday, as things have finally been running smoothly.


Separation 0.82 for Mac OS X PowerPC seems a bit flaky. Three of the six tasks I recall completing with it (my "Application details" page says I've had seven) — including the two most recent — have received "inconclusive" validations and have earned no points at all. The others have been given only 214, 214, and 160 points respectively. Each has used between 14.5 and 19.5 hours of processor time on my 2.0 GHz G5. (Mac OS 10.4.11, BOINC 6.10.58.)

For comparison, the version which was current when I attached to this project in April took around 25 hours 40 minutes to complete tasks, but they all validated (albeit "Application details" notes only 4 consecutive valid tasks) and earned two hundred and sixty-something points a piece.

It's difficult to get excited about two days of double credit with the current app. ;)
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Matt Arsenault
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Message 49532 - Posted: 24 Jun 2011, 15:10:54 UTC - in response to Message 49528.  

Separation 0.82 for Mac OS X PowerPC seems a bit flaky. Three of the six tasks I recall completing with it (my "Application details" page says I've had seven) — including the two most recent — have received "inconclusive" validations and have earned no points at all.
That's normal. You probably did get credit for them later when they did validate. That just means it's waiting for another workunit to return with the same result to validate against.
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Message 49533 - Posted: 24 Jun 2011, 15:11:47 UTC - in response to Message 49528.  

Three of the six tasks I recall completing with it (my "Application details" page says I've had seven) — including the two most recent — have received "inconclusive" validations and have earned no points at all.

Those should have validate later, when the wingman was ready, unless yours were indeed invalid. That's always little difficult to see as they are purged here usually within 1 or 2 minutes.


The others have been given only 214, 214, and 160 points respectively.

That are the normal amounts of credits, 214 you get ATM for a de_separation_13_3s_fix* WU or for a ps_test* WU, and 160 credits you get for de_separation_13_3s_free* WUs, which are shorter. So that's OK.


For comparison, the version which was current when I attached to this project in April took around 25 hours 40 minutes to complete tasks, but they all validated (albeit "Application details" notes only 4 consecutive valid tasks) and earned two hundred and sixty-something points a piece.

267 Cr WUs are ATM de_separation_10_3s_fix*, they take longer, so you get more credits, but you obviously didn't get any this time. But since all those tasks get pretty much exactly the same credit/CPU-time or runtime on GPU (at least after my calculations for my computers), that should not really matter if you make 2 short ones or one long. And the "consecutive valid tasks" thing is indeed little strange here.
.
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Message 49535 - Posted: 24 Jun 2011, 15:54:06 UTC

perhaps he can make So+Mo as double days then every one is half happy ^^
DSKAG Austria Research Team: http://www.research.dskag.at



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Chris S
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Message 49536 - Posted: 24 Jun 2011, 17:05:48 UTC

Monday and Tuesday seems fine to me, but I'll go with the majority view. Just happy to have them really!
Don't drink water, that's the stuff that rusts pipes
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Message 49537 - Posted: 24 Jun 2011, 18:20:38 UTC - in response to Message 49498.  

I think we'll have the double credit days next monday and tuesday, as things have finally been running smoothly.

Don't want to seem greedy even though I am, but if I remember correctly it was to be 2 days due to the original credit loss. Since then we have had numerous other problems such as good WUs that don't validate because of rogue computers spewing bad results, valid WUs with 0 credit, etc. Any consideration for these. Hey, guess I am greedy! :)
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Message 49538 - Posted: 24 Jun 2011, 18:28:03 UTC

Weekend works for me. That way I can babysit my main cruncher...
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Message 49539 - Posted: 24 Jun 2011, 18:58:50 UTC

for me better not in the weekend (going around....)
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Nigel Garvey

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Message 49540 - Posted: 24 Jun 2011, 18:59:40 UTC - in response to Message 49533.  

Three of the six tasks I recall completing with it (my "Application details" page says I've had seven) — including the two most recent — have received "inconclusive" validations and have earned no points at all.

Those should have validate later, when the wingman was ready, unless yours were indeed invalid. That's always little difficult to see as they are purged here usually within 1 or 2 minutes.


Thanks, Link and Matt, for your replies. I was being fooled by the purge and the lack of visible wingmen into thinking that "inconclusive" was the end of the matter here. I occasionally get "inconclusive" results with other projects, but there they mean something less neutral than "waiting for wingman" and the tasks always remain on the tasks pages until they're either validated or not.

It's good to know too that the various numbers of points are associated with particular kinds of task — which I hadn't appreciated before — and that my having encountered the lower scorers at the same time as the application changed was entirely coincidental.

I just hope my wingmen can hold off until Monday or Tuesday or whenever. ;)
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Len LE/GE

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Message 49541 - Posted: 24 Jun 2011, 19:23:58 UTC - in response to Message 49538.  

Weekend works for me. That way I can babysit my main cruncher...


Nothing against TGG but isn't it more important that someone is babysitting the mw server during this time?
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